Senior officers at Canada’s two largest bread wholesalers communicated directly to raise prices in lockstep, then met with five retailers, who accepted the hike on condition their competitors would as well, the federal competition watchdog alleges in court documents released Wednesday.

The pattern became colloquially known as the 7/10 convention, according to the documents — with a usual seven cent price increase at wholesale and 10 cent price bump for the consumer in stores.

In December, Loblaw and George Weston admitted they sparked the investigation when they approached the watchdog after becoming aware of an alleged industry-wide arrangement to co-ordinate retail and wholesale prices of some packaged bread products from late 2001 to March 2015.

The two companies received immunity in exchange for their co-operation. The remaining five companies have previously said they’re co-operating with the investigation, and some have outright denied any wrongdoing.

Loblaw spokesman Kevin Groh said Wednesday the documents are “unequivocal.”

“We have admitted our role, and you cannot price fix alone,” he said, adding the company stands by its previous statements and the actions it has taken.